[paralimg] {
    min-height: 80vh;
    
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}


@media (max-width: 1023px) {
    [paralimg] {
        max-height: calc(100vh - 40pt);  /* browser toolbar... */
    }
}